Shaft bearing



NOV. 8, E s SPEARMAN SHAFT BEARING Filed Dec. 31, 1929 9 Smwwboz S- oearman Patented Nov. 8, 1932 V r e I i 1 UNITED STATES IJIACI-IINERY COMPANY, OF SOUTH CAROLINA SHAFT Brianne;

Application filed December 31, 1929. Serial no. 417,769. 7'

This invention seeks to provide means whereby the alinement of a shaft may be maintained and wear in the bearings compensated. While the invention is designed primarily for use in connection with the cam shafts of looms, it may be advantageously ap plied to any and all shafts. In looms a cam shaft is provided in the lower portion of the loom frame and carries a relatively large gear which meshes with a smaller gear upon a shaft immediately above the cam shaft, the cam shaft being carried by bearings mounted upon the frame. In time the lower por tion of the bearing wears and the cam shaft also wears so that the shaft drops and the gear thereon fails to mesh properly with the upper gear, and it is the object of the present invention to provide a simple'andefficient attachment, independent of and separate from the bearing whereby said hearing may be adjusted so as to maintain the proper position of the shaft. The invention is illustrated in the accompanying drawing and will be hereinafter fully set forth and particularly defined.

In the drawing: 7 i

Figure 1 is an elevation of a portion of a loom frame showing the present invention applied thereto, and V x i Fig. 2 is a transverse section on the line 22'of Fig. 1. V I

The loomframe may be of any usual or approved form and a portion of the same is indicated at 1, the frame being provided with vertically extending slots 2 and having its lower portion spanned by a journal'box 3 which fits closely over the lower portion of the frame, as clearly shown in Fig. 2. Securing bolts a are insertedthrough the lower portion of the journal box and through theslots 2 so that the box may be adjustedvertically to maintain the cam shaft in the proper position, a portion of the cam shaft being indicated at 5 in Fig. 2. A flange 6 is formed on the loom frame and this flange isarcuate in form, as shown clearly in Fig. 1, and extends from foot to foot of the frame so as to provide reinforcement for the supporting portion of the frame. In carrying out the present invention, there is provided a block 7 which'has an 'arcuate lower side whereby 1, i

may rest directly upon the flange 6 and GREENVILLE, I H AR LINAJsA qoaromrxomon' throughthis block is inserted-a securing bolt 8 which also-'passesthrough' the side of the loonrframe toholdtheblock against end? wise movement. Threaded into the upper f side fof'the block are set bolts orposts Qwhich project above the block and-have their heads 10 bearing directly against the' l ower edge of V I the journal box 3, Lock nuts 11; are mounted upon the bolts and rest upojnthe topofthe block7', as shown, so that the bolts'wil l be locked in a set position.

It i's-thoughtthefunction of the device Wl-ll' a be apparent from what haswbeen said Intime the shaft r'eceiving'recess or groove in the journal box wears underthe'thrust imposed thereon by the operation of theloom and asiit' wears the shaft,of' course, tends to. dropi'so. that'eventually the gears will notfproperly mesh: Heret'ofore'ithas been necessary-to stop the loom and apply a complete new-journal box to remedythiscondition, but by the.

use of my device, which is independent of the journal box or bearing and is attached tothe frame beneath the bearing and in vertical aliinement therewith the shaft can be adjusted withoutstoppingthe loom and in a ver'yshort time. WVhenreadjustment of the bearing be comes necessary, the bolts 4 are loosened and the lock nuts 11 are then released after which the adjusting bolts 9 are turned soas to move upwardly andsthi s upward-movement. will, ofcourse, be transmitted directly to the jour-' nal box sothat the boxwill'be moved upward-V ly and the-proper meshing of the gears quick-' ly attained. YVhen the gears again mesh properly, the bolts at, are again ti htened and the lockinuts lI turnedlhome. he device i's exceedingly simple and being in the nature of an attachment oraccessory separate from and independent of the bearing 1 may be readily applied to the bearing of any loom now in use as well as to the bearings of looms in;

course of construction without necessitating any structural changes or alterations 1n or to said bearing. The action is certain and efficient and when the bearing has been set "it will remain in the set position for a long period and'no attention need begiven it until it is observed that the gears have again failed to properly mesh.

Having thus described the invention, I

.claim:

1. 'As a new article of manufacture, a portable bearing adjuster for looms comprising a base for attachment to a support wholly beneath a bearing of the loom and independent of said bearing, spaced vertically disposed adjusting screws threaded in the base and adapted to bear against the lower portion of said bearing, and lock nuts threaded on the screws for engagement with the upper face of the base for holding the bearing in adjusted position.

'2. As a new article of manufacture, a bearing adjuster separate from and independent of a bearing and adapted to be supportedbeneath and in vertical alinement with the bearing, said adjuster comprising a base having its lower portion shaped to conform to and adapted to be detachably connected with a support and its upper portion provided with a Vflat face having spaced threaded openings therein, vertically disposedadjusting screws engaging saidthreaded openings and having their upper ends provided with enlarged heads adapted to bear against the lower portion of said bearing, and lock nuts threaded on the adjusting screws beneath the heads thereof and adapted to bear against the flat face of the base for holding the bearing in adjusted position.

3. The combination with av supporting frame having a laterally extending reinforcing flange and provided with an adjustable bearing, of abearing adjusting device separate from andindependent of the bearing de i tachably mounted on the flange beneath and in vertical alinement with said bearing and comprising a base having its lower portion shaped .to conform to and adapted to bear against the reinforcing flange and its upper portion provided with a flat face, the flat face of said base being formed with spaced threaded openings, vertically disposed adjusting screws threaded in said openings and having their upper ends provided with enlarged heads adapted to bear against the adj acent portion of the bearing, lock 7 nuts threaded on said adjusting screws for engagement with the flatface of the base for holding the bearing in adjusted position, and means for securing the base to the supporting frame.

In testimony whereof I affixed my signatur EARNEST s. SPEARMAN. 11. 

